[Milsurplus] RE: [ARC5] serious tube

James Duffer dufferjames at hotmail.com
Tue Oct 31 18:20:44 EST 2006


For true DC which is required for the audio purist could be achieved with 
this dovetail waveform applied to a ball bearing rectifier.


>From: mikea <mikea at mikea.ath.cx>
>To: milsurplus at mailman.qth.net
>Subject: Re: [Milsurplus] RE: [ARC5] serious tube
>Date: Tue, 31 Oct 2006 08:50:48 -0600
>
>On Tue, Oct 31, 2006 at 02:24:36PM +0000, D C *Mac* Macdonald wrote:
> > It's all based upon the theory of negative resistance.
> > When you design negative resistors into a special
> > circuit, you can develop a negative frequency
> > oscillator.  The output of this is fed to a transformer
> > with a third (tertiary) winding.  A transformer so
> > constructed is known as a step-aside transformer as
> > opposed to the normal step-up or step-down version.
> > This ouptut drives a a cathode-coupled current
> > crippler, which is the heart of the infra-red
> > destruction generator.
>
>And that's how KL7F got his (in)famous dovetail-wave generator to
>work.
>
>Here's the output waveform:
>
>---    ---------    --------    --------    --------    --------
>   /    \       /    \      /    \      /    \      /    \      /
>  /      \     /      \    /      \    /      \    /      \    /
>  --------     --------    --------    --------    --------
>
>--
>Mike Andrews, W5EGO
>mikea at mikea.ath.cx
>Tired old sysadmin
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